Assertion :- In Neurospora each gene either dominant or recessive express it's effect.
Reason :- Neurospora contain many alleles of a gene.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is Flase.
D. If both Assertion & Reason are false.

Answer

To analyze the assertion and reason provided in the question, we can break down the solution into the following steps:

### Step 1: Understand the Assertion
The assertion states that "In Neurospora, each gene either dominant or recessive expresses its effect."
- Neurospora is a haploid organism, meaning it has only one set of chromosomes.
- In haploid organisms, each gene is represented by a single allele. Therefore, either the dominant or the recessive allele can express its effect independently.

### Step 2: Evaluate the Reason
The reason states that "Neurospora contains many alleles of a gene."
- While it is true that some organisms can have multiple alleles for a single gene (multiple alleles), in the case of Neurospora, due to its haploid nature, each gene is controlled by only one allele at a time.
- Thus, the statement about Neurospora containing many alleles of a gene is incorrect.

### Step 3: Determine the Truth Value of Assertion and Reason
- The assertion is **true** because in Neurospora, each gene does express its effect as either dominant or recessive.
- The reason is **false** because Neurospora does not have multiple alleles for each gene due to its haploid nature.

### Step 4: Conclusion
Based on the evaluation:
- Assertion: True
- Reason: False

Thus, the correct conclusion is that the assertion is true, but the reason is false.

### Final Answer:
Assertion is true, Reason is false.

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